CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Ofu & Olosega, American Samoa in 2012

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Publication_Date: 20120829
Title:
CRED Rapid Ecological Assessment Line Point Intercept Survey of Benthic Parameter Assessments at Ofu & Olosega, American Samoa in 2012
Geospatial_Data_Presentation_Form: spreadsheet
Online_Linkage:
https://www.fisheries.noaa.gov/pacific-islands/ecosystems/coral-reefs-pacific
Description:
Abstract:
Line point intercept (LPI) surveys and benthic composition assessments were conducted during Rapid Ecological Assessments (REA) as part of the Pacific Reef Assessment and Monitoring Program (RAMP) cruise HA1201 in American Samoa from 20120401 to 20120426. Surveys are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) at periodic intervals between one and three years to support a long-term NOAA Coral Reef Conservation Program (CRCP) for sustainable management and conservation of coral reef ecosystems. During the cruise, 9 REA sites were surveyed at Ofu & Olosega in American Samoa. Benthic biologists from NOAA's Coral Reef Ecosystem Division conducted Line Point Intercept surveys to quantitatively document the benthic cover at pre-determined long-term monitoring REA sites. Two linear 25 m transects were surveyed with a 5 m inter-transect region between the end of Transect 1 and the start of Transect 2. The LPI diver determines the benthic composition at 20 cm intervals for a total of 125 data points per transect. All living benthic elements (e.g., coral, algae, and other invertebrates) were identified to the lowest taxonomic level possible, often substituting functional group categories for turf algae and crustose coralline algae when identification in the field was extremely difficult. In cases where the substrate is bare or covered with turf algae, the substrate composition is also noted as either sand, rock, rubble, carbonate pavement, or dead coral. The data allows for the assessment and monitoring of species composition and abundance and provide the basis for computing quantitative estimates of percent cover at higher taxonomic levels like functional group (live coral, macroalgae, turf algae) or on a finer taxonomic resolution such as genus level.
Purpose:
Part of a long-term monitoring program which documents the state of the reefs.
Supplemental_Information:
Maximum depth was 18 meters. Benthic components observed: Acanthastrea, Acropora, Alveopora, Astreopora, Cheilosporum, Chlorodesmis, Cladiella, Coralline algae, Coscinaraea, Crustose coralline algae, Cyanobacteria, Cyphastrea, Dictyosphaeria, Echinopora, Favia, Favites, Fungia, Galaxea, Goniastrea, Halimeda, Hydnophora, Leptastrea, Leptoria, Leptoseris, Lobophora, Lobophyllia, Lobophyton, Montastrea, Montipora, Oulophyllia, Pavona, Peyssonnelia, Platygyra, Pocillopora, Porifera, Porites, Sand, Sinularia, Stylophora, Tunicate, Turbinaria, Turf algae
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120424
Ending_Date: 20120426
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: asNeeded
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -169.68735569
East_Bounding_Coordinate: -169.60390655
North_Bounding_Coordinate: -14.1484
South_Bounding_Coordinate: -14.19292
Keywords:
Theme:
Theme_Keyword_Thesaurus: NCEI Geoportal Filter
Theme_Keyword: CoRIS_Metadata
Theme:
Theme_Keyword_Thesaurus: CRCP Project
Theme_Keyword:
Pacific Reef Assessment and Monitoring Program: Monitoring coral reef ecosystems of the US Pacific Islands and Atolls
Theme_Keyword: 587
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Marine Ecosystem
Theme_Keyword: Reef Assessment and Monitoring Program (RAMP)
Theme_Keyword: Rapid Ecological Assessments (REA)
Theme_Keyword: Coral Reef Ecosystem
Theme_Keyword: Benthic Cover
Theme_Keyword: American Samoa
Theme_Keyword: Ofu & Olosega
Theme_Keyword: HA1201
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Numeric Data Sets > Biology
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
Theme_Keyword:
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral reef ecology
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Rapid assessment studies
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: 002
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: American Samoa
Place_Keyword: Ofu & Olosega
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014)
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: AmSam
Access_Constraints: None
Use_Constraints:
Please cite CRED when using data. Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Coral Reef Ecosystem Division (CRED), Pacific Islands
Fisheries Science Center (PIFSC), National Marine
Fisheries Service (NMFS), National Oceanic and Atmospheric
Administration (NOAA)
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Country: USA
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Data_Set_Credit: Rodney Withall, Coral Reef Ecosystem Division (CRED)
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable
Native_Data_Set_Environment: Oracle
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The benthic cover parameter observations were made by a single diver who is a benthic ecologist. The benthic cover assessment surveys are conducted one time per site per survey year; it is not replicated.
Logical_Consistency_Report:
The same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientist.
Completeness_Report:
The survey sites were selected to be representative of the dominant habitats at this reef system.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: GPS Unit
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 1
Horizontal_Positional_Accuracy_Explanation: Instrument parameters
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Dive computer and SCUBA depth gauge
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 0.3
Vertical_Positional_Accuracy_Explanation: Instrument parameters
Lineage:
Process_Step:
Process_Description:
REA surveys are investigations that provide a high degree of taxonomic resolution for coral, algae, and other macroinvertebrate communities. The majority of REA surveys were conducted along the forereef slopes of individual islands at depths between 10 and 20 m. However, additional habitats including lagoonal-type patch reef and offshore oceanic banks were surveyed when they existed. During REA surveys, biological assessment teams follow highly structured protocols that are repeated at each REA site. Upon arrival at an REA site, divers entered the water and deployed two 25 m transect lines which are shared with coral surveys that gather community structure, diversity, recruitment, and health status data. The sampling effort takes between 60 and 80 min to complete. The selection of REA sites was made in close consultation with Coral Reef Advisory Group (CRAG) and local agencies. Factors considered during REA site selection included: (1) ensuring a range of sample sites representative of the benthic and reef fish habitats around each island; (2) selecting a mixture of sites within and outside of marine protected areas; (3) selecting a mixture of both 'impacted' and 'least impacted' sites; (4) selecting some sites adjacent to local villages; and (5) selecting a number of sites that could be compared to and complement previous assessment and monitoring work as well as future coral reef monitoring proposed by CRAG and local agencies. It is important to note that access to REA sites can be limited by wave exposure, weather conditions, and other environmental factors such as currents, which can affect the ability to re-survey sites between years. Transect placement was guided by: (1) a focus on hard-bottom communities; (2) deploying lines along an isobath to the extent possible at each site, and (3) laying the transect lines into the prevailing current.
Process_Date: Unknown
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal Degrees
Geodetic_Model:
Horizontal_Datum_Name: World Geodetic System 1984 (WGS84)
Ellipsoid_Name: Geodetic Reference System 80 (GRS80)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.2572236
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Coral Reef Ecosystem Division (CRED), Pacific Islands
Fisheries Science Center (PIFSC), National Marine
Fisheries Service (NMFS), National Oceanic and Atmospheric
Administration (NOAA)
Contact_Position: Data Manager
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Country: USA
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Resource_Description: Offline Data
Distribution_Liability:
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:
xls (Microsoft Excel worksheet) or csv (comma-separated values)
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM or email
Recording_Format: ISO 9660
Fees: None if receiving the data online
Custom_Order_Process: Contact CRED data management team for information
Technical_Prerequisites: Contact CRED data management team for information
Metadata_Reference_Information:
Metadata_Date: 20190526
Metadata_Review_Date: 20120830
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Coral Reef Ecosystem Division (CRED), Pacific Islands
Fisheries Science Center (PIFSC), National Marine
Fisheries Service (NMFS), National Oceanic and Atmospheric
Administration (NOAA)
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Country: USA
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
CoRIS:
CoRIS_ID: 20120830122052
CoRIS_Children: None
CoRIS_Beginning_Date: 20120424
CoRIS_Ending_Date: 20120426
CoRIS_Metadata_Link:
https://www.coris.noaa.gov/metadata/records/html/cred_metadata_benthic_rea_lpi_ofu_2012.html
CoRIS_Tracking_ID: 6546
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